| Tulcea to Oxford (Alabama) | 5,632.11 mi (9,064.00 km) |
| Tulcea to Oxford (Mississippi) | 5,724.95 mi (9,213.41 km) |
| Tulcea to Oxford (Ohio) | 5,282.93 mi (8,502.05 km) |
| Tulcea to Oxnard (California) | 6,597.07 mi (10,616.96 km) |
| Tulcea to Oxon Hill (Maryland) | 5,032.47 mi (8,098.98 km) |
| Tulcea to Ozark (Alabama) | 5,736.83 mi (9,232.53 km) |
| Tulcea to Ozark (Missouri) | 5,706.03 mi (9,182.96 km) |
| Tulcea to Pace (Florida) | 5,838.63 mi (9,396.36 km) |
| Tulcea to Pacific Grove (California) | 6,496.68 mi (10,455.39 km) |
| Tulcea to Pacifica (California) | 6,442.67 mi (10,368.47 km) |
| Tulcea to Paducah (Kentucky) | 5,548.16 mi (8,928.90 km) |
| Tulcea to Pahrump (Nevada) | 6,397.90 mi (10,296.42 km) |
| Tulcea to Painesville (Ohio) | 5,046.17 mi (8,121.02 km) |
| Tulcea to Palatine (Illinois) | 5,259.97 mi (8,465.10 km) |
| Tulcea to Palatka (Florida) | 5,675.31 mi (9,133.53 km) |
